Spring bed bottom



y c. KIRCHNER 1,907,324

SPRING BED BOTTOM Filed May 15, 1952 wvwawfl W B Y WW W 395 A TTORNEYPatented May 2, 1933 siren isomer? GAB-L KIBCI-INER, or CARTHAGE,MISSOURI, nssienon T0 LEGGETT AnnrnATT SPRING BED .enn nanoracrnnineCGMPANY, on CAR-'EZ-LLGE, rarer-scent, ACORPOR-ATION OF MISSOURI SPRINGBED BOTTOM Application filed May 13, 1932.

My invention relates to improvements in spring bed bottoms.

The object of my invention is to provide a novel spring bed bottom,which is simple, cheap to make, strong, durable, not likely to get outof order, in which the springs are ield firmly together, which assemblesthe Jrings with minimum space between them, and which affords a firmsupport for the margins oi a pad adapted to be mounted thereon, or forfabric enveloping the spring structure.

The novel features of myinvention are hereinafter fully described andclaimed.

In the accompanying drawing illustrative of my invention,

Fig. l is a plan view of my improved bed bottom.

Fig. 2 is an end elevation of the same.

Similar characters of reference designate similar parts in the differentviews.

1 designates spiral springs of the double cone type disposed inlongitudinal rows the springs in alternate rows being in transversealinement with each other and in staggered relation to the springs inthe other rows.

The end coils at the top and bottom of each spring 1 are ofsubstantially circular form. The top and bottom coils of one end springof each row are each provided at the side next to the adjacent end ofthe bed bottom with a straight transversely extending portion 2 formingchord portion of the coil, as the chord of an arc.

The top and bottom coils of the other end spring of each row are eachprovided with a peripherally projecting U shaped offset 3, the str h-ttransverse portion of which extends ti a iisversely of the bed bottom.

The alternate springs at each end of the bed bottom have chord portions2 transversely alined with each other, the other springs at said endhaving offsets 3 transversely alined with each other and with said chordportions 2 at said end.

Transverse helicals l respectively encircle the sets of chord portions 2and the offsets 3, and by engaging the springs hold them from relativelateral movement.

' Serial No. 811,126.

spring wire.

The springs 1 have their upper and lower coils similarly arranged andformed and connected by helicals in a similar manner, when springs ofthe double cone type, as shown, are employed. I

Various modifications of my invention, within the scope of the appendedclaims,

may be made without departing from the spirit of my invention.

What I claim is 1. A bed bottom having parallel longitudinal rows ofspiral springs, alternate springs at one end of the bed bottom beingtransversely alined with each other and in staggered relation to theother springs at said end, said alternate springs having respectivelychord portions transversely alined with each other, said other springshaving respectively peripherally projecting ohfsets transversely alinedwith each other and with said chord portions, and a helical encirclingsaid chord portions and said ollsets and engaging and holding said endsprings from relative lateral movement.

2. A bed bottom having parallel longitudinal rows of spiral springs, theend springs of each row having respectively at opposite ends of the bedbottom a chord portion and a peripherally projecting offset, alternaterows having their end springs in staggered relation transversely to theend springs of the other rows, the chord portions at one end of the bedbottom being in alternate rows and transversely alined with each other,and the offsets at said end of the bed bottom being transversely alined'with each other and with said chord portions at said end and inalternate relationship thereto, and two helicals respectively encirclingthe chord portions and offsets at opposite ends of said bed bottom, andengaging and holding the end springs of said rows from relative lateralmovement.

3. A bed bottom having parallel longi tudinal rows of spiral springsalternate springs at each end or" the bed bottom having respectivelychord portions transversely alined with each other, the other springs atsaid end having respectively offsets transversely alined with each otherand with said chord portions at said end, springs of alternate rowsbeing transversely alined with each other and in staggeredrelation tothe springs of the other rows, two helicals respectively encircling thechord portions and offsets at opposite ends of said bed bottom, andlongitudinal helicals respectively encircling and engaging the outersides of the springs of the outer rows and the adjacent sides ofadjacent springs in adjacent rows, said two helicals respectivelyholding said end springs from relative lateral movement, and said otherhelicals holding said springs from relative longitudinal movement.

In testimony whereof I aflix my signature.

CARL KIROHNER.

